It sounds like one of your two memory modules is faulty. The fact that when you remove one of them, everything is ok kinda gives it away! The only thing you may want to check is whether it is the actual ram module that's faultly or the socket. The chances are it will be the module but you can check easy enough - for example, if whenever you remove module #2 from the system, everything works fine, then leave module out but move module #1 into the socket that module #2 used to occupy. If the problems return, then the socket is faulty. If everything is still ok with the module #1 in the second socket, then the actual ram (#2) stick is faulty.
Don't forget to disconnect the mains power from the back of the PC, discharge your own static by touching a metal surface and then disconnect the main ATX (20 pin) connector from the motherboard BEFORE adding or removing the modules.
well,ya i tried somethings:
i put piece no.1 into socket no.1 and everyhting was fine.
i put piece no.2 into socket no.1 and others were empty and everything was fine.
i put piece 1 on socket no.2 and everything was fine too.
i put piece 2 on socket no.2 and everything was fine.
when i put the two pieces into socket no.1 and no.2 the problem came,or socket no.2 and no.3
i enterd windows (when 512 was in) and after 1 min a blue screen shows up saying:
"bla bla bla prevent damage,
Begining dump of physical memory.
physical memory dump complete.
contact your administrator or technical support group for further assistance."
i did memory test of Microsoft on one of the memory ,and it was fine with no errors.
i did BIOS reset,it didnt solve the issue.
Thanx a lot.